github.com/vmware/govmomi@v0.43.0/govc/tags/ls.go (about)

     1  /*
     2  Copyright (c) 2018 VMware, Inc. All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  	http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package tags
    18  
    19  import (
    20  	"context"
    21  	"flag"
    22  	"fmt"
    23  	"io"
    24  	"text/tabwriter"
    25  
    26  	"github.com/vmware/govmomi/govc/cli"
    27  	"github.com/vmware/govmomi/govc/flags"
    28  	"github.com/vmware/govmomi/vapi/tags"
    29  )
    30  
    31  type ls struct {
    32  	*flags.ClientFlag
    33  	*flags.OutputFlag
    34  	c string
    35  }
    36  
    37  func init() {
    38  	cli.Register("tags.ls", &ls{})
    39  }
    40  
    41  func (cmd *ls) Register(ctx context.Context, f *flag.FlagSet) {
    42  	cmd.ClientFlag, ctx = flags.NewClientFlag(ctx)
    43  	cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
    44  	cmd.ClientFlag.Register(ctx, f)
    45  	cmd.OutputFlag.Register(ctx, f)
    46  	f.StringVar(&cmd.c, "c", "", "Category name")
    47  }
    48  
    49  func (cmd *ls) Process(ctx context.Context) error {
    50  	if err := cmd.ClientFlag.Process(ctx); err != nil {
    51  		return err
    52  	}
    53  	return nil
    54  }
    55  
    56  func (cmd *ls) Description() string {
    57  	return `List tags.
    58  
    59  Examples:
    60    govc tags.ls
    61    govc tags.ls -c k8s-zone
    62    govc tags.ls -json | jq .
    63    govc tags.ls -c k8s-region -json | jq .`
    64  }
    65  
    66  type lsResult []tags.Tag
    67  
    68  func (r lsResult) Write(w io.Writer) error {
    69  	tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
    70  
    71  	for i := range r {
    72  		fmt.Fprintf(tw, "%s\t%s\n", r[i].Name, r[i].CategoryID)
    73  	}
    74  
    75  	return tw.Flush()
    76  }
    77  
    78  func (cmd *ls) Run(ctx context.Context, f *flag.FlagSet) error {
    79  	c, err := cmd.RestClient()
    80  	if err != nil {
    81  		return err
    82  	}
    83  
    84  	m := tags.NewManager(c)
    85  	var res lsResult
    86  
    87  	if cmd.c == "" {
    88  		res, err = m.GetTags(ctx)
    89  	} else {
    90  		res, err = m.GetTagsForCategory(ctx, cmd.c)
    91  	}
    92  
    93  	if err != nil {
    94  		return err
    95  	}
    96  
    97  	categories, err := m.GetCategories(ctx)
    98  	if err != nil {
    99  		return err
   100  	}
   101  	cats := make(map[string]tags.Category)
   102  	for _, category := range categories {
   103  		cats[category.ID] = category
   104  	}
   105  
   106  	for i, tag := range res {
   107  		res[i].CategoryID = cats[tag.CategoryID].Name
   108  	}
   109  
   110  	return cmd.WriteResult(res)
   111  }